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Old 03-21-2014, 09:22 AM   #1
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SYE or U-joints?

After installing an RC 2.5 inch lift and 1/2 inch lift boomerang shackles (gave me 3.5 total), I was getting drive line vibrations across the board. I put in a 1" TC drop and that helped a little. I replaced my transmission mount and that helped a little more so I put the T-case at 1/4" drop. At this point I'm getting vibrations that kick in at about 30mph and drop off at about 40mph.
I checked my rear U-joints this morning and there's no play in the one closest to the t-case, but the one closest to the rear dif has some very noticeable play in it.
I'm wondering if it would be worthwhile to replace the U-joint with all the play in it or if I'd be better off just calling Adams and ordering the SYE kit.

Has anyone had a loose U-Joint cause drive line vibration like this?

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Old 03-21-2014, 10:26 AM   #2
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A worn u joint like that will cause vibrations. I would definitely replace it. Because a new u joint is cheap (less than $20), but a SYE ($200) and driveshaft ($250-300) isn't cheap at all.

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Old 03-21-2014, 11:46 AM   #3
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Yeah, I think I'll replace that U-Joint and the straps for $15 and see what happens.
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Old 03-21-2014, 01:59 PM   #4
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If you're getting to the point of doing the SYE, might wanna go ahead and do an axle upgrade if that's in the cards...
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Old 03-22-2014, 01:25 PM   #5
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Replacing that U-joint didn't help....Time to place order for SYE...
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Old 03-22-2014, 02:35 PM   #6
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Can you post a pic of your driveshaft angle?
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Old 03-22-2014, 10:31 PM   #7
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Look into a motor mount raise 1" that will help with the angles, MORE off road enterprises makes nice ones. I'm running a set
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Old 03-22-2014, 11:22 PM   #8
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Quote:
Originally Posted by Ez roller View Post
Look into a motor mount raise 1" that will help with the angles, MORE off road enterprises makes nice ones. I'm running a set
I was thinking about doing that but my fear was that I would keep piling on "stuff" and eventually get so close to spending what an SYE costs, I would have been better off with just getting the SYE.

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